Sunspot:
01286 Is the OEM bulb for the DB6AA. This bulb is far brighter in a DB4AAA or DB4AA modded to run in serial rather than serial / parallel. It generates about 72 L in my DB4AA's.
01183 is a very high amperage bulb that would probably be underdriven in a DB8AA with NiMHs in serial / parallel because of voltasge drop. The wattage is too high for the reflector. Other threads on the topic come to the conclusion that 9 to 10 watts is about as far as one can safely push the DB reflector and switch assembly for more than a couple of minutes at a time. I'm waiting for some Carley aluminum reflectors I've ordered. I will combine them with W/A ceramic sockets for these bulbs, A 10 amp microswitch and run the 6.0 V 3.35 A 20 W 01111 bulb in a DB8AA with 7 rechargeable 2700 mAh A NiMH cells and a dummy. The voltage drop from the high current will give me a modestly overdriven bulb that should generate about 649 Lumen at 6.6 V 3.53 A and 23 Watts.
I personally run my DB6AA's in serial. I like the 01315 bulb with NiMH's. I'm inclined to try a 01165 or an 01124 with 6 NiMHs. The 01315 is pricy at $7.18 @, and I suspect the 6.0V bulbs may be cheaper.